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Discussion Starter #1
Well I got the D&D pipe and the K&N pods and the Dyno jet kit installed today, when I first got it running it had a flat spot between 4 and 6 grand but man did it hit hard after that, after about an hour of tuning flat spot is gone and this little bastard is one mean machine, it will lift the front wheel in first with just throttle and under hard acceleration it will lift the front on the first to second shift. Baseline for the dyno jet kit wasn't even close the needles are on the 4th slot from the top with 140 mains. Now I just need to install the timing advancer and change the gearing.
 

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And when your all done your net will be 54 HP.

FOG
 

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If all I pick up is 8% (which I doubt seriously) so what, 8% is still 8% more than I had, plus I've dumped around 30 lbs all things considered. (airbox, exhaust, 250 wheel conversion, rear fender, steel foot pegs replaced with Aluminum etc.) The total package is not solely about HP its about power to weight ratio. Also when the Cycle tested the Gen 1 back in 87 they mentioned that carburetion and tall gearing were the EXs draw backs and I believe that to be correct after riding it, with the mods I've done this bike runs neck in neck with my friends stock KZ900 and it hasn't been geared or timing advanced yet, we are both drag racers used to winning, the difference in rider is negligible and the only thing separating us today was who got the drop out of the hole, this 500 will run with a well maintained KZ900 any day all day. Where do you live? Do you have a drag strip near by? What say we have a little drag race to test my work against the airbox and dual exhaust theory, the boy and I are looking for a road trip this summer, I'm not talking California, but I'd drive a few hundred miles either way from Omaha and if you happen to live in the central or north east states I'll be out there in late July/early August. Hell maybe we can even have a dyno pull in the same place at the same time as we all know that different dynos in different places give different readings even the same dyno can give different reading from pull to pull. I've heard all the talk "don't take off the airbox or you'll have a flat spot you can't fix", "don't use a full exhaust", basically don't do any thing that works on every other normally aspirated bike in the world apparently the EXs are some kind of special lame piece of crap that nothing works on, well it's time to put up or shut up, maybe if it's to far you can meet me half way what say you? Enough B.S I'm ready!
 

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Art , I wasn't challenging you. I raced EXs for 13 years from 89 t0 2001. Mostly showroom stock with limeted mods for safety etc. This was for a class at Loudon NH. I also raced a Modified one with all the mods you describe and many more. On the same track at the same time. I can truthfully say that I, and many others were just as fast on the stock ones as the modded ones. Without making the engine larger the best I could get was about 55 HP. And I managed 53.9 out of a box stocker. I compared that with many Pipeandajetkit bikes on the same dyno they generally produced the 54 HP you describe. What really counts in road racing is the total power under the curve on the dyno plot. So a high peak number is not a good as a solid spread of power from down as low as 6000.
Usually the tinning you need to do for the small filters softens the bottom end somewhat.
Good luck in drag racing , Try 15/44 for gearing.
I live in Mountain Home AR and no longer have a EX (ride a VFR)

FOG
 

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Appreciate you pointing out that it's not just a matter of higher peak HP, Fog, but the improvement in the power curve used in a given race. That was a revelation for me when I first learned it and anyone who hasn't heard & understood it will benefit.

Art... are you the 500 in Bellevue? (I'm near 120 & Blondo)
 

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MrSciTrek said:
Appreciate you pointing out that it's not just a matter of higher peak HP, Fog, but the improvement in the power curve used in a given race. That was a revelation for me when I first learned it and anyone who hasn't heard & understood it will benefit.

Art... are you the 500 in Bellevue? (I'm near 120 & Blondo)

That little feature of Shifting the power curve up and getting a bigger number on top, by sacrificing it elsewhere, has been selling pipes for years. Well noise too. The weight thing is mostly a joke, achieved by using cheaper materials, and is only good for rationalizing a desire to make noise.

FOG
 

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I suppose a peak power emphasis is major at Bonneville: where maximal power & gearing are matched for maximum speed, all to overcome drag and limited by the available salt traction.

Makes me wonder how salt traction compares with asphalt. ???

Anyone here see the movie "World's Fastest Indian"?
http://www.rottentomatoes.com/m/worlds_fastest_indian/

Shoulda asked for that from Santa- Will have to check Blockbuster for discount a used version.
 

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FOG said:
On the same track at the same time. I can truthfully say that I, and many others were just as fast on the stock ones as the modded ones.
FOG
Well I would point out that Louden is much more a handleing track then a power track @ 1.6m and only one short straight-away.

Down in the Fla/SE CCS crowd where I raced a EX from '89 to '96, running Moroso (2.25m, 2 long straights), Road Atlanta (2.5m, 1 very long straight that used to end at Gravity Cavity, one of the coolest sections of track untill they changed it) and Daytona Speedway (3.5m and the longest curving straight you'll ever race!) a stock EX got left in the dust, as Art points out, its not just the hp but the power/weight ratio that makes a bike fast, esp out of the corner or on a long straight.
 

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FOG said:
I live in Mountain Home AR and no longer have a EX (ride a VFR)

FOG
Sorry for the threadjack, but what year VFR are you on?
I'm pretty seriously thinking about getting one later on this summer so I'm looking for advice and opinions and such.
 

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aoasus said:
FOG said:
I live in Mountain Home AR and no longer have a EX (ride a VFR)

FOG
Sorry for the threadjack, but what year VFR are you on?
I'm pretty seriously thinking about getting one later on this summer so I'm looking for advice and opinions and such.
Mines a 96 the last of the 750s. A seriously fine bike. Handles as well as almost any sport bike right up to the latest track refuge. although a bit on the heavy side at 460 lbs. Comfortable riding position. and mostly a total piece of quality on everything. There just ain't any junk on this thing. I will keep it forever.

FOG
 

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Cool, I am looking more at the 800 I wouldn't even mind the extra weight of the ABS as it'll really be 95% commuter travel. It's an hour commute each way and about half of it is freeway at 70-75 mph so i'm looking for something that is a bit more comfortable at those speeds than our little 500. I'm even thinking of a Connie but want something that isn't quite so pedestrian and that could handle a track day should I ever be so inclined. I love my Honda cars and can't see why their bikes should be any worse built.

What REALLY sucks is that I spend 40+ hours a week sitting with my back to a track that I can't ride on and will likely never see a bike on either.

Here's the view out my office window...


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I've ridden the 800s to and I will say the linked brakes (not ABS) were the best one I ever used. Completly invisable. not monkey business the thing just stops. Not for the track , but who takes one there ? I mean besides Freddi Spencer.

FOG
 
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